Machine for making pulp pipes.



PATENTBD SEPT. 12, 1905.

MACHINE FOR MAKING PULP PIPE.

APPLICATION FILED APR.29,1905.

3 SHEETB-SHEET 1.

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wan/M02 7%. @44 M 5 O 9 l 2 1 m P E S D E T N E T A P S am 2 9 9 7 0 N MACHINE FOR MAKING PULP PIPE.

APPLICATION FILED APE.29. 1905.

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UNITED STATES PATENT OFFICE.

STEPHEN R. BRADLEY. JR, OF SOUTH NYACK, NEW YORK, ASSIGNOR TO THE FIBRE ONDUIT COMPANY, OF ORANGEBURU, NEW YORK, A CORPORATION OF NEW YORK.

MACHINE FOR MAKING PULP PIPES.

Specification of Letters Patent.

Patented Sept. 12, 1905.

Application filed April 29, 1905- Scrial No- 258,104.

To 1/ whom, it may concern.-

Be it known that I, STEPHEN R. BRADLEY, J r., a citizen of the United States of America, and a resident of South Nyack, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Machines for Making Pulp Pipes, of which the following is a specification.

This invention relates particularly to improvements in the provision for the removal of pulp pipes as they are finished in a machine of the type set forth in Letters Patent of the United States No. 583,898, granted June 8, 1897, to Henry Fairbanks. In this machine a pair of revoluble frames are mounted on a horizontal shaft, and forks spaced about their peripheries guide and support aseries of forming-rolls while the rolls are being shifted to and from and while at the position in the machine at which thepulp pipe is formed on the rolls. The shaft which carries these frames is supported by hearings in vertical guides to permit adjustment, so that forming-rolls of different sizes may be substituted in the'ma chine, according to the sizes of pipe which it is desired to make.

The object of the invention is to provide in conjunction with the machine tracks to which the forming-rolls can be transferred and from which the forming-rolls canbe returned to the forked frames with a minimum of handling and lifting and by which the formingrolls can be brought to a position where one end underlies an abutment in such manner that the other end may be freed from the support of the track on which it travels and the roll so held while the pipe is removed therefrom. The forks in the revoluble frames are so spaced and the tracks are so positioned that a forming-roll can be removed from and returned to the forked frames while another forming-roll is in position for the formation of the pipe thereon, whereby the operation of pipe-forming does not need to be interrupt ed during the operation of removing and returning a forming-roll to the forked frame or while stripping a pipe from the roll. Furthermore, these tracks and the abutment are supported through vertically adjustable brackets, whereby they can be adapted to the height to which the forked frames are adjusted.

In the accompanying three sheets of drawings, which form a part of this application, Figure l is atop view of a pulp-pipe machine embodying myinvention. Fig. 2 isa side elevation of the machine. Fig. 3 is an end view of the machine, and Fig. I is a section on the line IV IV of Figs. 1 and 2.

The machine to which my improvements are applied comprises a pulp-vat N, in which a supply of paper-pulp is maintained. In this vat a mold-cylinder M revolves and carries a film of pulp to a couch-roll O. This roll is finely perforated except near each end and coupled to a pipe P, through which air is constantly exhausted to cause the pulp film to transfer from the mold-roll to the couchroll and become partially dried in passing half-way round the couch-roll to a formingroll A, which rests on top of the couch-roll and on which the pulp pipe is formed. The forming-roll is held in place at each end by forks]; bo'f rcvoluble frames B B. These frames have several evenly-spaced forks in their periphery, preferably four in each, so

that when a fork in each frame is at the lowermost point of the periphery and holding a forming-roll in place on the couch-roll another fork in'each frame will be in a horizontal position for the convenient reception or discharge of another forming-roll. The revoluble forked frames are mounted on a horizontal shaft O, the ends of which are supported in bearings c 0. These bearings lie in vertical guides and are vertically adjustable by means of worm-wheels "w w, which are threaded to receive screws s x, which are attached to the bearings. The worm-wheels are concurrently operated by worms u u on a horizontal shaft 1'. By thismechanism the height of the forked frames is adjusted according to the size of the forming-rolls which are to be used, so that when a forming-roll is resting on the couch-roll the trunnions at its ends will lie between the forks and not touch the bottoms of the forks, both with and without the full thickness of pulp requisite for a pipe formed on the roll. Curved guards F F follow the peripheries of the lower halves of the forked frames and hold the trunnions of the forming-rolls in the forks while they are being carried to and from the couch roll. Bracketsf' f formed on the sides of these guides extend to the frame of the machine and are bolted thereto by bolts which pass through slots in the brackets, so that the'he'ight of theguides can be adapted to the height to which the revoluble forked framesareadjusted.

Short tracks T T, are located at points even with lower sides of the forks at the sides of the forked frames and are preferably formed integral with thecurved guides from,

which they are supported. An additional support is provided for the outer end of the track T by a leg Q, which is threaded for nuts q g,

by which the length of the leg above its point leg Q, and adjustablysup-ported fromthe A supporting-- framework of the machine. I piece S is adjustablybolted tothe side ofthe track T, the top of this piece being set below the top of the track byan amount equal to the shoulder between a roll and its trunnion In the operation of the machine when a pulp pipe of thed'esired thickness hasbeen built up on the forming-rollwhich overlies the couch roll the revoluble forked frames are turned by hand through a q uarter' of a revolution, therebybringing-a new r-oll onto the couch-roll-and carrying the forming-roll, with; the pulp pipe formed thereon, to the point A;

The next repetition of the operation carries-the forming-roll, with the pulp pipe, to ,thepoint A and the third repetition of the operation.

carries the forming-roll, with the pulp pipe, to the opposite side-from the-secondpositlon,

where it can be rolled out from the forks onto the tracks. While the forked frames are being revolved a lever L is held in the vertical position indicated in dotted-lines, thereby preventing the roll from leaving the forks when the forks are not in exactline with the tracks. to the proper position and stoppech-the lever L is turned into the position in which it is shown in full lines and the forming-rollis rolled out of the forks and onto the tracks. The forming-roll is prevented from accidentally rolling off from the tracksby reason of a hook 2/ at the endof the track T and the abutment R, which is bent down in--front of the trunnion at the other end. The attendant then lifts the end of the forming-roll which rests on the track T and pushes the .roll tov the left, thereby bringing the main body-of the-roll at the other end-onto the support S and the trunnion at that end under the abutment R. The end held-by the attendant is swung out clear of the hooki on the end of the track Tand released. The roll willthen hang free at this end in aslightly downwardlyinclined position, as illustrated at A being supported in this position by the-abutment and support and track at the other end. "The When the frames have been brought pipe is-then stripped ofl? from the formingroll and the roll is returned to the forks over -.the tracks by which itwas removed whilethe pipe on the rollahead is in process of formation.

What I claim as new, and desire to secure .byLettersPatent Qf:=tl16 United States, is

1. In a machine for making pulp pipes, the

,combination. of a couch-roll, forming-rolls,

revoluble forked frames for guiding and supporting the-forming-rolls, a pair of tracks for receiving the forming-rolls from the revoluble forked frames, and an abutment for the upperside of one end of eachone of the formi-ng rolls, whenbrought upon the --'tracks,

wherebythe rol-l will -be supported by the abutmentand.adjoiningtrack at.0ne.end,when theother end is removed-fromthe support of the other track, substantially as described.

2. In a machinefor makingpulp pipes, the combination of a .couch roll, forming-rolls, revolu-ble-forkedframeswith evenly=spaced forks: for guiding and supporting the forming-rolls, a-pairof tracks positioned for receiving.a formingeroll-from one ofthe .pairs of forks when the forked -f ram es are holding another formi-ngrroli on; the couch rol'hand an abutmentfor the upper side ofone end of each forming --roll when brought uponthe tracks whe-rebythe rol-l will be supported :by

the-abutment-andaadjoiningtrack at one end when the other end is Eremoved from the sup? portiof the other'track, substantially as described. 1

3 .-.1'n a-machinetor making pulp pipes, the combinationo-f alcouch-roll, forming rolls, revoluble-forkedframes with evenly-spaced forks for guiding and suppo'rtingthe: form.- ing-rolls,=means-for;adjusting the height of the *for-ked frames, apair of'tracks, verticallyadjustable brackets whereby the tracks can be i adjusted and supported at therequisite height each formingrroll :when brought upon the tracks, whereby theroll will be wholly supported by-the abutment and adjoining track .at one end-when the otherend is removed from the support: of the other track, .and means a for secur-ing: and supporting the ab utment at :variable heights conforming to: the

heightsto which the forked frames and tracks are adjusted, substantially as described.

- :Signer1.byme, at New York, N. Y., on the 'QZth day of April, 1905. 

